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  • Title: Inhibitory effect of KWD 2131, terbutaline, and DSCG on the immediate and late allergen-induced bronchoconstriction.
    Author: Hegardt B, Pauwels R, Van Der Straeten M.
    Journal: Allergy; 1981 Feb; 36(2):115-22. PubMed ID: 6112931.
    Abstract:
    Beta-adrenoceptor stimulants exhibit both bronchodilating and anti-allergic activities. KWD 2131 is a new beta-agonist with preferably anti allergic property. In an earlier study, nebulized KWD 2131 in a non-bronchodilating dose (0.25--0.50 mg) did not give significant protection against immediate reaction. The present study evaluated whether an increased nebulized dose of the new compound (5 mg) could protect against either immediate and/or late responses. The response was compared with a nebulized dose of terbutaline (5 mg) and with twice the recommended dose DSCG (40 mg). The study included 10 patients with known allergic asthma. It was designed as a single-blind cross-over trial with randomized allocation of the drugs. Lung functions were measured spirometrically and by body-plethysmograph; flow volume curves were drawn. KWD 2131 gave no significant protection against immediate reaction. Both terbutaline and DSCG did so, terbutaline being more efficient. Contrary to the beta-agonists, DSCG also gave protection against late response.
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